Step apparatus for vehicle and vehicle

Abstract

A step apparatus for a vehicle and a vehicle are provided. The step apparatus for the vehicle includes: a step; a lifting device including an arm assembly, the arm assembly including a plurality of pairs of arms, each pair of arms including a first arm and a second arm; and a driver pivotably connected to a first end of the first arm and a first end of the second arm of each pair of arms. A second end of the second arm of each pair of arms is pivotably connected to the step, a second end of the first arm of each pair of arms is pivotably connected to the vehicle, and the driver is configured to drive the arm assembly to be unfolded and folded to adjust a level of the step.

What is claimed is: 
     
       1. A step apparatus for a vehicle, comprising:
 a step; 
 a lifting device comprising an arm assembly, the arm assembly comprising a plurality of pairs of arms, each pair of arms comprising a first arm and a second arm; and 
 a driver pivotably connected to a first end of the first arm and a first end of the second arm of each pair of arms, a second end of the second arm of each pair of arms being pivotably connected to the step, a second end of the first arm of each pair of arms being pivotably connected to the vehicle, and the driver being configured to drive the arm assembly to be unfolded and folded to adjust a level of the step, 
 wherein the plurality of pairs of arms comprise at least a first driving arm pair or a second driving arm pair, the first driving arm pair and the second driving arm pair are configured in at least one of: the second end of the first arm of the first driving arm pair and the second end of the first arm of the second driving arm pair are connected through gear transmission, or, the second end of the second arm of the first driving arm pair and the second end of the second arm of the second driving arm pair are connected through gear transmission. 
 
     
     
       2. The step apparatus for the vehicle according to  claim 1 , wherein the step has a side bar position, a step position, and a jack position, and wherein:
 in the side bar position, the step is located at a lower edge of a side face of the vehicle body, 
 in the step position, the step is located between the side bar position and the ground, and 
 in the jack position, the step abuts against the ground and is configured to jack up the vehicle body. 
 
     
     
       3. The step apparatus for the vehicle according to  claim 1 , wherein the lifting device further comprises a mounting base and a step base, wherein the step is mounted to the step base, the mounting base is configured to be mounted to a bottom surface of a vehicle body of the vehicle, the second end of the first arm of each pair of arms is pivotably connected to the mounting base, and the second end of the second arm of each pair of arms is pivotably connected to the step base. 
     
     
       4. The step apparatus for the vehicle according to  claim 3 , further comprising a gear box, wherein the gear box comprises a housing, a first gear, and a second gear, wherein the housing is mounted to at least one of the mounting base or the step base, the first gear and the second gear are mounted in the housing and mesh with each other, the second end of at least one of the first arm or the second arm of the first driving arm pair is connected to a gear shaft of the first gear, and the second end of at least one of the first arm or the second arm of the second driving arm pair is connected to a gear shaft of the second gear. 
     
     
       5. The step apparatus for the vehicle according to  claim 4 , wherein the gear box comprises a first gear box and a second gear box, wherein the housing of the first gear box is mounted to the mounting base, the housing of the second gear box is mounted to the step base, the gear shaft of the first gear of the first gear box is connected to the second end of the first arm of the first driving arm pair, the gear shaft of the second gear of the first gear box is connected to the second end of the first arm of the second driving arm pair, the gear shaft of the first gear of the second gear box is connected to the second end of the second arm of the first driving arm pair, and the gear shaft of the second gear of the second gear box is connected to the second end of the second arm of the second driving arm pair. 
     
     
       6. The step apparatus for the vehicle according to  claim 3 , wherein the second end of the first arm of the first driving arm pair and the second end of the first arm of the second driving arm pair are each provided with a plurality of first gear teeth, wherein the first gear teeth of the first arm of the first driving arm pair mesh with the first gear teeth of the first arm of the second driving arm pair. 
     
     
       7. The step apparatus for the vehicle according to  claim 6 , wherein, in the driving arm pair, both the first arm and the second arm comprise a first side plate and a second side plate, the first side plate and the second side plate are arranged opposite to and spaced apart from each other, the second end of the first side plate of the first arm and the second end of the second side plate of the first arm are pivotably connected to the mounting base, the second end of the first side plate of the second arm and the second end of the second side plate of the second arm are pivotably connected to the step base,
 wherein the second end of the first side plate of the first arm and the second end of the second side plate of the first arm are each provided with the plurality of first gear teeth, the first gear teeth of the second end of the first side plate of the first arm of the first driving arm pair mesh with the first gear teeth of the second end of the first side plate of the first arm of the second driving arm pair, the first gear teeth of the second end of the second side plate of the first arm of the first driving arm pair mesh with the first gear teeth of the second end of the second side plate of the first arm of the second driving arm pair mesh with each other. 
 
     
     
       8. The step apparatus for the vehicle according to  claim 3 , wherein the second end of the second arm of the first driving arm pair and the second end of the second arm of the second driving arm pair are each provided with a plurality of second gear teeth, the second gear teeth of the second arm of the first driving arm pair mesh with the second gear teeth of the second arm of the second driving arm pair. 
     
     
       9. The step apparatus for the vehicle according to  claim 8 , wherein in the driving arm pair, both the first arm and the second arm comprise a first side plate and a second side plate, the first side plate and the second side plate are arranged opposite to and spaced apart from each other, the second end of the first side plate of the first arm and the second end of the second side plate of the first arm are pivotably connected to the mounting base, the second end of the first side plate of the second arm and the second end of the second side plate of the second arm are pivotably connected to the step base,
 wherein the second end of the first side plate of the second arm and the second end of the second side plate of the second arm are each provided with the plurality of second gear teeth, the second gear teeth of the second end of the first side plate of the second arm of the first driving arm pair mesh with the second gear teeth of the second end of the first side plate of the second arm of the second driving arm pair, the second gear teeth of the second end of the second side plate of the second arm of the first driving arm pair mesh with the second gear teeth of the second end of the second side plate of the second arm of the second driving arm pair. 
 
     
     
       10. The step apparatus for the vehicle according to  claim 3 , wherein the second end of the first arm of the first driving arm pair and the second end of the first arm of the second driving arm pair are each provided with a plurality of first gear teeth, the first gear teeth of the first arm of the first driving arm pair mesh with the first gear teeth of the first arm of the second driving arm pair,
 the second end of the second arm of the first driving arm pair and the second end of the second arm of the second driving arm pair are each provided with a plurality of second gear teeth, the second gear teeth of the second arm of the first driving arm pair mesh with the second gear teeth of the second arm of the second driving arm pair. 
 
     
     
       11. The step apparatus for the vehicle according to  claim 10 , wherein in the driving arm pair, both the first arm and the second arm comprise a first side plate and a second side plate, the first side plate and the second side plate are arranged opposite to and spaced apart from each other, the second end of the first side plate of the first arm and the second end of the second side plate of the first arm are pivotably connected to the mounting base, the second end of the first side plate of the second arm and the second end of the second side plate of the second arm are pivotably connected to the step base,
 wherein the second end of the first side plate of the first arm and the second end of the second side plate of the first arm are each provided with the plurality of first gear teeth, the first gear teeth of the second end of the first side plate of the first arm of the first driving arm pair mesh with the first gear teeth of the second end of the first side plate of the first arm of the second driving arm pair, the first gear teeth of the second end of the second side plate of the first arm of the first driving arm pair mesh with the first gear teeth of the second end of the second side plate of the first arm of the second driving arm pair mesh with each other; 
 the second end of the first side plate of the second arm and the second end of the second side plate of the second arm are each provided with the plurality of second gear teeth, the second gear teeth of the second end of the first side plate of the second arm of the first driving arm pair mesh with the second gear teeth of the second end of the first side plate of the second arm of the second driving arm pair, the second gear teeth of the second end of the second side plate of the second arm of the first driving arm pair mesh with the second gear teeth of the second end of the second side plate of the second arm of the second driving arm pair. 
 
     
     
       12. The step apparatus for the vehicle according to  claim 3 , wherein the plurality of pairs of arms further comprise a driven arm pair, and the driving arm pair and the driven arm pair are arranged at intervals. 
     
     
       13. The step apparatus for the vehicle according to  claim 12 , wherein the driver comprises a first end, a second end, and a connecting part between the first end and the second end, the first end of the first arm of the first driving arm pair and the first end of the second arm of the first driving arm pair are pivotably connected to the first end of the driver, the first end of the first arm of the second driving arm pair and the first end of the second arm of the second driving arm pair are pivotably connected to the connecting part of the driver, the first end of the first arm of the driven arm pair and the first end of the second arm of the driven arm pair are pivotably connected to the second end of the driver. 
     
     
       14. The step apparatus for the vehicle according to  claim 1 , wherein the first arm and the second arm of each pair of arms are arranged symmetrically. 
     
     
       15. The step apparatus for the vehicle according to  claim 14 , wherein the first arm and the second arm of each pair of arms are inclined from the driver to an inner side or an outer side of the arm assembly. 
     
     
       16. The step apparatus for the vehicle according to  claim 1 , wherein the driver is a linear driver. 
     
     
       17. The step apparatus for the vehicle according to  claim 16 , wherein the linear driver is a hydraulic cylinder, an air cylinder or an electric push rod. 
     
     
       18. A vehicle, comprising:
 a vehicle body; and 
 a step apparatus for a vehicle, wherein the step apparatus for the vehicle is mounted to a bottom surface of the vehicle body, 
 wherein the step apparatus for the vehicle comprises:
 a step; 
 a lifting device comprising an arm assembly, the arm assembly comprising a plurality of pairs of arms, each pair of arms comprising a first arm and a second arm; and 
 a driver pivotably connected to a first end of the first arm and a first end of the second arm of each pair of arms, a second end of the second arm of each pair of arms being pivotably connected to the step, a second end of the first arm of each pair of arms being pivotably connected to the vehicle, and the driver being configured to drive the arm assembly to be unfolded and folded to adjust a level of the step, 
 wherein the plurality of pairs of arms comprise at least a first driving arm pair or a second driving arm pair, the first driving arm pair and the second driving arm pair are configured in at least one of: the second end of the first arm of the first driving arm pair and the second end of the first arm of the second driving arm pair are connected through gear transmission; or, the second end of the second arm of the first driving arm pair and the second end of the second arm of the second driving arm pair are connected through gear transmission. 
 
 
     
     
       19. The vehicle according to  claim 18 , wherein the step has a side bar position, a step position, and a jack position,
 in the side bar position, the step is located at a lower edge of a side face of the vehicle body, 
 in the step position, the step is located between the side bar position and the ground, and 
 in the jack position, the step abuts against the ground and is configured to jack up the vehicle body. 
 
     
     
       20. The vehicle according to  claim 18 , wherein the lifting device further comprises a mounting base and a step base, the step is mounted to the step base, the mounting base is configured to be mounted to a bottom surface of a vehicle body of the vehicle, a second end of the first arm of each pair of arms is pivotably connected to the mounting base, and the second end of the second arm of each pair of arms is pivotably connected to the step base.